Photons underpin our lives, from our ability to see through to our communication systems. While computers are built around electronics, long-haul communications are built around light. Photonic integrated circuits (PICs) are the optoelectronic equivalent of the silicon chips that have revolutionised society over the last 70 years. PIC devices such as lasers, modulators, waveguides and detectors are widely used in communications, sensing, healthcare and quantum technology. Optical communications represents almost 60% of this market, with PICs currently deployed mainly in the long-haul network. However, because of society’s ever-increasing demands for data, they are migrating rapidly into the office and home.
Photons underpin our lives, from our ability to see through to our communication systems. While computers are built around electronics, long-haul communications are built around light. Photonic integrated circuits (PICs) are the optoelectronic equivalent of the silicon chips that have revolutionised society over the last 70 years. PIC devices such as lasers, modulators, waveguides and detectors are widely used in communications, sensing, healthcare and quantum technology. Optical communications represents almost 60% of this market, with PICs currently deployed mainly in the long-haul network. However, because of society’s ever-increasing demands for data, they are migrating rapidly into the office and home.
John Marsh studied Engineering and Electrical Sciences at Cambridge before pursuing a PhD in compound semiconductors at the University of Sheffield. He moved to the School
of Engineering at Glasgow in 1986 where he was appointed Professor in 1996. He is a Fellow of the Royal Academy of Engineering, Royal Society of Edinburgh and IEEE.
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